{"product_id":"flexible-duct-silencer","title":"Flexible Duct Silencer – 4\" to 12\" (1m, Bends 90°)","description":"\u003cp\u003e\u003cstrong\u003eEvery extraction fan makes two noises: the motor, and the air.\u003c\/strong\u003e The motor is a gentle hum. The air is the roar that comes rushing down the ducting and out of every gap. A flexible silencer deals with the second one. It's a metre of acoustic-lined, sound-absorbing duct that sits straight after your fan and soaks up that rushing noise before it reaches the rest of the run.\u003c\/p\u003e\n\n\u003ch3\u003eWhy this silencer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic lining.\u003c\/strong\u003e Absorbs the high-pitched rush of fast-moving air, which is the part of fan noise people find most annoying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible.\u003c\/strong\u003e It bends up to 90°, so it fits into tent corners and tight spots where a rigid can silencer won't go.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGerman-made\u003c\/strong\u003e and built to last.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits any brand.\u003c\/strong\u003e Standard duct sizes from 4\" to 12\" work with RAM, AC Infinity, Rhino, Systemair and other fans.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 metre long\u003c\/strong\u003e and clamps on just like ducting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSizes\u003c\/h3\u003e\n\u003cp\u003e4\" (100mm), 5\" (125mm), 6\" (150mm), 8\" (200mm), 10\" (250mm) and 12\" (315mm), all 1 metre long. Match it to your fan's spigot size.\u003c\/p\u003e\n\n\u003ch3\u003eThe quiet stack\u003c\/h3\u003e\n\u003cp\u003eFor the quietest possible extraction: a \u003cstrong\u003enoise reduction clamp\u003c\/strong\u003e between fan and filter to stop vibration, this \u003cstrong\u003esilencer\u003c\/strong\u003e straight after the fan, then \u003cstrong\u003eacoustic ducting\u003c\/strong\u003e (like RAM Sonoduct) for the rest of the run. Everything is in our ducting range.\u003c\/p\u003e\n\n\u003ch3\u003eRose's Pro-Tip\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003e\"Fit the silencer on the fan's outlet, as close as you can. That's where the noise is born. Catch it there and the rest of your ducting stays quiet too. Pull the silencer straight where you can; a gentle bend is fine, but don't kink it.\"\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill it slow my airflow?\u003c\/strong\u003e\u003cbr\u003eBarely. It's a full-bore duct, so the effect is similar to adding a metre of ducting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it on the intake side?\u003c\/strong\u003e\u003cbr\u003eYes, though it does most good on the exhaust straight after the fan.\u003c\/p\u003e","brand":"HydroGarden","offers":[{"title":"4\" (100mm)","offer_id":55091774718298,"sku":"BFH-FLEXSIL-100","price":36.99,"currency_code":"GBP","in_stock":true},{"title":"5\" (125mm)","offer_id":47760270819674,"sku":"08-395-010","price":41.99,"currency_code":"GBP","in_stock":true},{"title":"6\" (150mm)","offer_id":55091774751066,"sku":"BFH-FLEXSIL-150","price":45.99,"currency_code":"GBP","in_stock":true},{"title":"8\" (200mm)","offer_id":55091774783834,"sku":"BFH-FLEXSIL-200","price":61.99,"currency_code":"GBP","in_stock":true},{"title":"10\" (250mm)","offer_id":55091774816602,"sku":"BFH-FLEXSIL-250","price":79.99,"currency_code":"GBP","in_stock":true},{"title":"12\" (315mm)","offer_id":55091774849370,"sku":"BFH-FLEXSIL-315","price":95.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9861\/4106\/files\/GPEsOvYD.jpg?v=1793138981","url":"https:\/\/blackflaghorticulture.com\/sq\/products\/flexible-duct-silencer","provider":"Black Flag Horticulture","version":"1.0","type":"link"}